PD70201EVB25F-3

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The PD70201EVB25F-3 Evaluation Board is a fully functional, off-line, low power, dual-output switching power supply, where one output is a DC-DC converter and the other an AC-DC converter. It offers a wide range of features, such as high efficiency, low output ripple, high power density, and high system reliability. The board utilizes the PD70201, a 300mA, 2.4MHz, high-performance, non-isolated, step-down power module, with an integrated FET, as its main component. Additionally, the board has support for protection using external NTC thermal sensors or system controlled soft-start, to maximize the life cycle of the converter. This makes the PD70201EVB25F-3 a great fit for a wide range of applications, from industrial, automotive, medical, and consumer electronics.

The PD70201EVB25F-3’s main application field is as a single-stage solution power supply for low power applications. The board provides two isolated and regulated output voltages, a DC-DC converter and an AC-DC converter. The board can be used with a wide range of input voltages, from 9V to 28V, and output voltages up to 12V. Additionally, the board has support for protection using external NTC thermal sensors or system controlled soft-start, which can extend the life cycle of the converter.

The board also has an internal booster circuit to improve the power conversion efficiency. Moreover, the board utilizes an advanced auto-calibration circuit that allows the user to easily adjust the output voltage in a matter of minutes. Finally, the board also supports an I2C interface, which can be used to control the current protection and gain settings. This makes the PD70201EVB25F-3 an excellent choice for a wide range of low power applications.

The working principle of the PD70201EVB25F-3 is based on two main components, the PD70201 and an integrated FET. The board is an off-line, non-isolated, dual-output power supply, where one output is a DC-DC converter and the other is an AC-DC converter. The PD70201 is a step-down power module, with 300mA output current, 2.4MHz switching frequency, and an extraneous internal base voltage.

The PD70201 is used as the primary, pre-regulation stage, which provides low output ripple and high efficiency. The FET in the module provides the main current-path, handling the load current while providing a low resistance path for the power to flow. The FET also provides overcurrent and thermal protection, allowing the module to safely deliver power to the load.

The main output is then regulated by an internal linear voltage regulator, providing an incredibly precise output voltage, with minimal voltage ripple. The internal booster circuit is also used to help improve the efficiency of the converter, while the advanced auto-calibration circuit allows for easy voltage adjustment in a matter of minutes. Finally, the board also supports an I2C interface, which can be used to control the current protection and gain settings.

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